Why are articles about mobile malware or hack tools always written vaguely enough to suggest they're 0-click? What valuse does an article have if it doesn't list the steps to get infected or uninfected?
That's an incredibly vague statement that'd lead most people to think they're fucked if they so much as open a site that says to update chrome.
Unless it's using some unmentioned exploit, the user in question needs to:
Download the 'update' from their browser instead of play store
Ignore the dangerous download warning chromium browsers show
Run the download
Enable installing apk from their browser / file manager
Ignore that the prompt says 'install' and not 'update'
Ignore the play protect unknown app warning (or dangerous app warning if it recognizes the malware)
Find and enable the accessibility service for the malware
Ignore the accessibility warning
Enable all the other permissions or disable settings app accessibility protection
Unless the app is circumventing the above steps, much more than just a "fake Google Chrome update that is shown while using the web browser." is needed to get infected. Not specifying if this is just an ordinary app with malicious intentions or if it actually uses exploits to achieve what normally can't be is misleading.